The Bee Hummingbird (Mellisuga helenae) weighs approximately 1.8 grams, less than a U.S. penny. It is the smallest bird in the world, measuring just 2.2 inches long.
The largest bird nest in North America is built by the American Bald Eagle. Their nests can be up to 14 feet deep and 8 feet wide.
The highest flying bird in the world is the Ruppell's Griffon vulture. It has been spotted flying at 37,000 feet, an altitude that only the most sophisticated jet planes can reach.
The Wandering Albatross is the bird with largest wingspan in the world, measuring just over 8 feet. The great wingspan allows this bird to glide for hours without having to flap it's wings.
The largest creature to ever fly above our earth was the Quetzalcoatlus. It's wingspan was 50 feet (16m).